uxcell Pinion Gear Set, Brass Motor Rack Straight Spur Gear with Step, 0.5 Mod 40T 6mm Bore 21mm Outer Dia, M3 Set Screws Included industrial WARRANTY: We provide 2-year warranty

WARRANTY: We provide 2-year warranty and 24-hour frendly customer service

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uxcell Pinion Gear Set, Brass Motor Rack Straight Spur Gear with Step, 0.5 Mod 40T 6mm Bore 21mm Outer Dia, M3 Set Screws Included industrial WARRANTY: We provide 2-year warrantyuxcell Pinion Gear Set, Brass Motor Rack Straight Spur Gear with Step, 0. 5 Mod 40T 6mm Bore 21mm Outer Dia, M3 Set Screws Included Product Features Pinion Gear: Model: 0. 5 Mod; Teeth: 40T; Bore Size (Shaft Dia.): 6mm 0. 24"; Outer Dia. (Teeth Part): 21mm 0. 83"; Effective Teeth Length: 5mm 0. 2"; Step Size: 18mm x 5mm 0. 71" x 0. 2" (D*H) Brass Parts: The brass pinion gear has strong wear resistance, high strength, high hardness and chemical